This document discusses visual impairment and provides information on identifying characteristics, common eye defects, and teaching strategies. Some key signs of visual impairment include rubbing eyes, watery eyes, holding objects close, and squinting. Common eye defects are short-sightedness, long-sightedness, and color blindness. Teaching strategies for visually impaired students include giving auditory inputs, having students sit in front, providing materials in large print or Braille, and motivating students to participate according to their ability.